Erwin, SD Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Erwin, SD in one place.
Mostly sunny, with a high near 86. South wind around 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Erwin, SD is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 22, 2026 11:03 PM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Erwin, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 22, 2026 11:03 PM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Erwin
Saturday looks like the warmest upcoming period in Erwin at 97 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Friday at about 15 mph S.
The forecast from Jul 24 through Jul 29 stays mostly dry.
Forecast Details
- Last updated
- Jul 22, 2026 11:03 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 68. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunny, with a high near 97. Southwest wind 10 to 15 mph.
Mostly clear, with a low around 72.
Mostly sunny, with a high near 97.
Mostly clear, with a low around 72.
Sunny, with a high near 93.
Partly cloudy, with a low around 68.
Mostly sunny, with a high near 89.
Mostly clear, with a low around 67.
Mostly sunny, with a high near 89.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny
|
86°F |
15 mph
S
|
|
Friday Night
Jul 24
|
Clear
|
68°F |
15 mph
SSW
|
|
Saturday
Jul 25
|
Sunny
|
97°F |
10 to 15 mph
SW
|
|
Saturday Night
Jul 25
|
Mostly Clear
|
72°F |
10 mph
SSE
|
|
Sunday
Jul 26
|
Mostly Sunny
|
97°F |
15 mph
S
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
72°F |
10 to 15 mph
S
|
|
Monday
Jul 27
|
Sunny
|
93°F |
10 to 15 mph
NNE
|
|
Monday Night
Jul 27
|
Partly Cloudy
|
68°F |
5 to 10 mph
ENE
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
89°F |
10 mph
NE
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
67°F |
5 to 10 mph
NE
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
89°F |
10 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Erwin.
Nearby forecast pages are not available for this location yet.